A cobpobatiojst of illhtois



Jan. 8, 1924. 1,479,825

' H. LUNDQUIST THREADING mourns Filed Nov. 10 1920 4 Sheets-Sheet 1" +3 T1791. l a L J H ifn Tatar; @7215 LL76 MES f flfizness: q

Jan. 8 1924.

H. LUNDQUIST THREADING MACHINE Filed Nov. 10 1920 ill! 4 Shasta-Sheet 2 Jan. 8, 1924. 1,479,825

} H. LUNDQUIST THREADING MACHINE Filed Nov. 10 1920 4 Sheets-Sheet l- "III/111111111111! vllll/llm m g Patented Jan. 8, 1924.

UNITED STATES PATENT OFFICE.

HANS LUNDQUIST, OF CHICAGO, ILLINOIS,

CORPORATiON, OF CHICAGO, ILLIN THREADING MACHINE.

Application filed November 10, 1920. Serial No. 423,052.

To all whom it may concern:

Be it known that I, HANS LUNDQUIST, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented a new and useful Improvement in Threading Machines, of which the following is a specification.

This invention relates to improvements in threading machines.

Objects of the invention are to provide a machine for automatically inserting a tape, band or ribbon into lace portions of a garment by placing the tape or the like alternately above and below the strands of the lace and to advance for this purpose the garment continuously along a relatively large stretch of the tape while the latter is being inserted into the lace.

It is also an object to guide the garment during this advance by passing it through the interspar-e between parts of a suitable pressure device.

It is another object to provide means for mechanically removing the threaded garment from the machine, and to operate for this purpose reverse feeding means in place of the threading needle.

The invention also has the object of reversing the motor which drives the machine upon movement of the reverse feeding means into operative position, and at the same time to throw the pressure device into inoperative position.

A release of the pressure device upon movement of the advance feeding means, also is one oitho objects of the invention.

The invention has numerous other objects, as will be apparent from the following specification which describes an embodiment of the niai-hine. and in which reference is made to the accmnpanying drawing.

In the drawing:

Fig. l is a top plan view of the complete machine;

Fig. 2 is a front elevation of the same:

Fig. 3 is a vertical section on the line 33 of Fig. 1; i

Fig. 4 is a sin'iilar section on the line l-4 of Fig. l:

Fig. 5 is a similar section on line '5--5 of Fig. 1, and

Fig. 6 is a transverse section on line 6-6 of Fig. 1;

Fig. 7 is a side elevation of the treadie and mounting. V

The casing 1 of the machine is substantially square or rectangular and comprises lateral Walls and a top. A motor 2, preferably an electrical motor, is mounted in the interior of the casing, and the shaft of this motor carries a worm 3 in engagement with a worm gear a which is secured to a vertical shaft 5 rotatably supported in a boss 6 which projects from the top wall ofthe casing downwardly into the interior. 0n tlietop of the shaft is mounted a bevel gear 7 inzmesli with a bevel gearfi which-isfkeyed to-a transverse shaft 9 extending through an extension 10 on top of the casing 1. The shaft 9 which is rotatably supported in the walls of the auxiliary on extension casing 10 by means of bushings 11 carries at one end a pair of spaced rubber disks 12 and '18 respectively, the rim of the disk 12 being wedge-shaped in cross-section, as indicated in Fig; 3. The disks 12 and 18 are supported on a reduced and threaded extension 13 of the shaft 9 and disk 12 is pressed against a metal disk14, which rests a ainst a shoulder of shaft 9. A sleeve 17, P ig. 3, serves for preventing axial displacement of shaft 9 relatively to the casing. The other side of the rubber diskvlfl which serves as frictional conveyor or guiding roller of the garment is engagediby a washer 16 against which is frictionally pressed a second similar washer held for suitably spacing a rubber driving wheel secured on the threaded extension by means of the nut 1.91 i

The bevel gear 8 also is mounted on a reduced extensionQU of shaft 9 and is held in place by suitable nuts on this/extension. Associated with the bevel gear 8=ontlie extension 20 is a spur gear 21 which meshes with an idler gear 22 loosely securedlon a short shaft 23' (Fig. 1) supported in the wall of the extension casing 10. The 21 and 22 serve for imparting airotary move merit to another shatt'24swhich' is supported in-the casing 10 in parallel relation; to the. shaft 9. 'Phis rotary drive'lis transmitted to the shaft 24 by means of a. spur gear 25 which is splined to the projecting end of the shaft 24. The shaft 24 is shdable in axial direction without interferin with its rotary drive. The engagement 0 the spur gear 25 with the idler gear 22 is maintained durin the axial displacement by the bracket 26, which is secured to the top wall of the casing 1 by the screw 27, Fig. 4, and which has an upwardly projecting flange close to the spur gear 25.

For effecting the axial displacement of this shaft, it carries fixedly} in the interior of the extension 10 a cylindrical rack 28. This rack is in engagement with a car 29, through the rotation of which the s aft 24 will be displaced axially in one or the other direction dependent upon the direction of rotation of this gear.

The opposite end of shaft 24 has a reduced extension on which a rubber drivingwheel 30 similar to the rubber wheel 18 is firmly clamped by means of a washer, seated against a shoulder on the shaft 24, and by a nut mounted on the threaded extension of the shaft.

The circular rack 28 is provided with a sleeve 31; a boss or lever 32 projecting outwardly from the sleeve isfastened to a bar 33, Fig. 5, the other end of which is in pivotal connection with an arm 34 of a collar 35 fixed to a vertical spindle 36 in the casing. Upon displacement of the shaft 24, caused by the axial displacement of the cylindrical rack 28, the bar 33 also will be shifted axially and will impart a swinging movement to the arm 34, turning thereby the spindle 36 about its vertical axis.

This spindle is rotatably supported in a bushing 37 which is screwed into a tapped opening 38 in the top wall of the casing extension 10. Axial displacement of the spindle in the bushing 37 is prevented however by hub members 39 and 40, respectively, secured by pins or in some other suitable way on the spindle. The hub 40 is integral with a bevel gear 41, which transmits the rocking movement of the spindle 36 to a rock shaft 42. This shaft is horizontally sup ported in the extension 10 by means of a bearing sleeve 43 having a circular flange 44. ()n the end of the rock shaft 42 which projects into the casing extension 10, the shaft carries a bevel gear 45 in enagement with the bevel gear 41. On the other end of the shaft an arm 46 is mounted on or in tegral with an arcuate shoe 47. The rocking movement of this shoe 47 about a horizontal axis coincides with the rocking movement of the arm 48 integral with the hub 39 about the vertical axis of the spindle 36. The arm, as shown in Fig. 5, terminates in a head 49 having a bore through which the stem 50 projects. An enlargement 51 at the lower end of this stem terminates in an arcuate shoe 52. This shoe is yieldingly forced downwardly by means of a spring 53 in the bore of the head 49, the spring rest ing at one end against the enlar ement 51 and at the other end against the ottom of the bore. The downward movement of the stem and shoe 52 is, however, adjustably limited owing to the knurled nut 55 on a threaded portion of the stem. The stem is surrounded above the head 49 by a sleeve ,54 which limits the adjustment of the nut 55. It will also be noted that the two shoes 47 and 52 are rocked simultaneously about axes which are angularly disposed to each other, viz at right angles to each other and that the angle of the rocking movement of one of these shoes is proportionate to the an le of the rocking movement of the other. caring lugs 56 projecting from the top of the casin extension 10 serve for sup porting a roc shaft 57. This rock shaft, as may be seen from Fig, 4, is parallel to and above the axis of the gear 29 which serves for imparting axial movement to the cylindrical rack 29. Loosely mounted on the shaft 57 is a sleeve having on part of its circumference a gear sector 59 integral with an upwardly extending arm 60 on which a handle 61 is suitably secured. The arm 60 may be swung about the axis of the rock shaft 57 and in this manner impart rotation to the gear 29 which causes the shifting movement of the rack 28 and of the shaft 24. The arm 60 with the handle 61 serves therefore as a means for reversing the direction of rotation of the machine, and this reversion is effected by actuating a reversing switch for the motor 2 of the machine. he reversing switch, as illustrated in Figs. 1 and 5, comprises a bar 62 which is slotted at its rear end, as indicated at 63. and which carries at its forward end a pair of spring contacts 64. This bar projects slidably through a bracket 65 (Fig. 5) secured to the top wall of the casing 1 and the two depending flanges of this bracket carry stationary contacts 66 and 67 insulated from each other and adapted for cooperation with the spring contact 64. Depending upon the engagement of the movable contact elements 64 with either one of the stationary contact elements 65, the direction of rotation of the motor 2 is reversed. i

The displacement of the contact bar 62 upon axial movement of the sleeve 28 is effected by means of an angular arm 68 which is integral with the rack and which projects forwardly, the bar 62 being guided be tween prongs 69, Fig. 5 of the horizontal part of the arm 68. A screw stop, 70, passing through the slot 63 of the bar 62 may engage the ends of the slot 63 and thereby cause the displacement of the reversing switch from one circuit closing position to another circuit closing position when the Lil) lever '60 through the handle 61 is swung about the axis of the rock shaft 57.

A lug 71 on the arm 60 carries a stop pin 72 which enga es in one terminal position of the arm are top of the casing or some other suitable fixed point so as to limit the swinging movement of this reversing switch in a predetermined direction.

Another lug 73 near the top of the arm has a central bore, in which the shaft 74 is rotatably secured and held against axial displacement by means of a washer75 which rests on a shoulder of the shaft and on the top surface of the lug 73. a collar 7 6 being fixedly secured to the lower end of the shaft. A reduced extension at the top of the shaft 74; supports rotatably a rubber dish 77 held in place by means of the nut T8. This conveying roller. T7, therefore, will be moved to horizontal position upon actuation of the arm 60-, the roller then being in engagement with the roller 30, as the shaft 24 through movement of the arm 60 is dlS' placed to the left, Fig. 4.

In fixed connection with the rock shaft 57 a sleeve 79 carries an outwardlv projecting arm 80, Fig. 3, which terminates in a up; '81 for supporting the idler shaft 82. A

threaded reduced extension on this shaft serves for receiving the rubber disk 8?) which is rigidly held in position on the shaft by means of washers and nuts similarly to the mounting of the rubber disk 18, described below. The shaft 82 also is secured against axial displacement in the log 80.

Another arm 84 also projects from the sleeve 79 in a direction opposite to the arm and a rod 85 is threaded into a. tapped socket of this arm. The rod carries a depending link Ht), pivoted at its lower end to a treadle 87 which swings about the pivot 88 of a foot bracket 89. A depression of the trcadle will cause the arm 80 to be swung upwardly about the axis of the shaft 57 so as to move the rubber disk 83 out of engagement with the companion dish 18. Normally, however, these disks are maintained in suit able engagement and the downward movement of the arm 84 may be yieldingly and adjustably limited by a pin 90 which is Seated in a log 91 on the arm 8 the lug containing a spring 92 which acts upon the top of the pin and upon theend of a screw 93 held inadjusted engagement'by the loci; not 94' seated on top of the lug 91. It will be seen that by depression of tho treadle 87 the arm 80 is raised. lifting thereby the roller 83 to interrupt the feeding action of the combined rollers 85 and 18.

Simultaneously with the rocking move ment of the shaft 57 whereby the feeding action is interrupted, the arcuate shoe 52 also is moved from functional position. This is attained by an arm 1% soruredto the rockshaft 57. as shown in Fig. 5. the arm terminating in a s of 12L. Fig. 1, directly below lllti lllll 55 of the stem :30. Win-n this arm is rocked it pulls the arcuate shoe upwardly against the action of the spring 53 which at the same time therefore serves for yieldingly limiting the swinging movement of the arm.

Near one end of the frame extension 10. a bracket 9:) is secured (Fig. 1). this bracket carrying a chute or trough M3 for guiding lhe tape or band to be threaded through the garment and for supporting the garment. ibis garment feeding device compri es two horizontal portions lit] and ill located in dili'ercnt planes but at about the some level, third horizontal portion ll! and intermediate silflltfll'tlllill' portions ill), ill; the trough as having. in general. the appearance of an elongated spiral. as indicated in Figs. :2 and 6. The straight part ill of this device serves as a support for the shank 99 of a removable threading needle. Fig. 6 lie-- tvv'een the rollers l8 andltl. The needle 99 terminates in the arrowhcaded point ll U pivoially secured to the attenuated end of the needle. This movable point of the needle is located approximately between the shoes l7 and 52.

The ribbon or tape to be t breaded into the garment is drawn along the horizontal inner portion ill) of the guid ng device down in the semicircular portion ll?) in the lower horizmnlal part hid. the other semicircular portion ll-l. and then along the other upper horizontal part ill between the rollers l2 and 18.

liefore starting the motor the shoes 52 and l? are moved slightly apart and tho garn'lnnt is then introduced between these two curved shoes so that the lure portion of: the garment is in contact with llll arrowhead of the threading needle. The machine is slightl v started by hand until the garment is advanced lo a point between the rollers lo and he motor is then thrown into operation and the garment advanced by coaotion of rollers 18 and 83 in the guiding device lll. travelling along the various parts of this spiralic trough until it reaches the oracle et in this position the tape or thread has been completely inserted overlying and underlying alternately the strands of lace, and the lhreailing operation is linished.

When the electric motor is stopped by manipulation of a suitable switch the gun ment is held in place between the rollers 18 and 83. The threading needle is then removed from the part 111, and the handle 61 is thrown over into a position at, right an 'le from that shown in Fig. 4. Owing to tie movement of the handle 60 the roller 77 will enter into contact with the roller 30 ill lot)

ill)

as, through the gear sector 59, gear 29 and the cylindrical rack 28 the shaft 24 has simultaneously been displaced in longitudinal direction to move the roller 30 outwardly approximately into alignment with the roller 18. At the same time, however, through the movement of the rack 28 the link 33 causes the arcuate shoe 52 to swil'ig about the axis of the spindle 36 and the shoe i? to swing away from the other shoe about the horizontal axis of shaft 42, permitting the Withdrawal of the garment under the influence of the motor, this motor now bein driven in a direction opposite to the first described direction as the rack 28 in its longitudinal displacement also actuated the reversing switch 62. T 1e garment, therefore, is automatically removed from the mahas been threaded same and in this removal of the arment from the machine, the garment Wl l unwind the tape from the bobbin on which it is wound and will place a new portion of the tape in proper position about the feeding trough 96 so that the operation can begin again when the needle J9 has been introduced into a suitable portion of the feeding trough.

After the removal of the garment, the arm 60 is again swung into upright position, as indicated in Fig. 4, and upon depression of the treadle 87, the operation may again be started.

I claim: I

i. In a threading machine, the combination of a tape support, a garment-feeding device, a pressure device adapted to act up on the garment during the feeding movement, and means for releasing the feedingdevice and the pressure device simultaneously.

2. In a threading machine, the combina- [ion of a tape support, means for feeding a garment onto the tape, a pressure device acting upon the garment, and a common means for reversing the feed of the garment and for releasing simultaneously the pressure device.

the combinameans for" feeding the garment onto the tape, a pressure device. and common means for moving the feeding pressure device to operative position with respect to the garment.

4. In a threading machine, the combina lion of a tape support, means for feeding the garment onto the tape, a pressure device adapted to act upon the garment during the feeding movement, and common means for simultaneously bringing the feeding device and the pressure device into operative relation, with respect to the garment.

5. In a threading machine, a tape support having the form of an elongated helix, the elongated portions of the helix being substantially horizontal, parts for connecting the elongated portions, a pair of feedin rollers near the connecting parts, said feed ing rollers being located in a common plane and having their axes parallel to each other, and a pair of reversing rollers movable into the plane of the feeding rollers.

6. In a threading machine, the combinahon of a tape support in the form of an elongated helix, having substantially horizontal parts connected by semi-circular portions, a pair of feeding rollers in a common plane with their axes in parallel relation to each other and disposed near the semicircular connecting portions, and a guiding roller located between turns of the elongated helix.

7. l n a threading machine, the combination of a tape support having the form of an elongated helix with. substantially horizontal straight portions and semi-circular mnnectiug portions, feeding and guiding rollers, one turn of the helix being located hetiveci'i a guiding roller and a feeding roller, and means for imparting a rotary movement to said feeding and guiding rollers.

8. In a threading machine, the combination of a tape support, feeding rollers for advancing the garment onto said tape support, a reversing roller, and means for moving the reversing roller from inoperative position to operative position and vice versa. 9. In a threading machine, the combinarollers for advancing the garment onto the support, a roller for reversing the feed of the garment, and means for angular-1y displacing the roller from inoperative to operative position, and vice versa.

10. In a threading machine, the combination of a t: )e support, a pair of feeding rollers for a vancing the garment onto the support, a reversing roller normally in inoperative position. and. means for axially displacing the reversing roller from inoperative to operative position, and vice versa.

11. In a threading machine. the combination of a tape support, feeding rollers for e. garment onto the support. a rollers adapted to move the garment ing rollers and for simultaneously displacing in axial direction the other of said reverse feeding rollers.

12. In a threading machine, the combination of a tape support, a pair of feedin rollers for advancing t e garment onto the support, a pressure device including a pair of pressure shoes adapted to act upon the garment during the feeding movement, and

means for swinging one of said shoes ahout a vertical axis to and from operative posi tion.

13. In a, threading machine. the eoinhination of a tape support, a pa r'of feeding rollers for advancing the garment onto the support, a. pressuridevire including apa r of pressure shoes adapted to act upon the gar- Inent during the feeding movement. and means for simnitaimouslv swinging said pressure shoes about axes which are in angular relation to each other.

'14. In a threading machine, the combination of a tape support, means for feeding the garment onto the support, a pair of pressure shoes adapted to act upon the garment during the feeding movenwnt, and means for swinging said pressure shoes aiiout axes at an angle to the direction of feed and to each other.

15. In a threading machine. the coinhina tion of a tape support. means for feeding the garment onto the support. a pair ol feeding rollers adapted to act upon the garment in the reverse movement thereof. a pair of pressure shoes arting upon the garment during the feeding movement. and means for simultaneously moving the pressure shoes to inoperative position and the reverse feedingrollers to operative position.

16. In a threading machine. the combination of a tape support. means for feeding the garment onto the si'lpport. said means including a motor. a switch for said motor. means normally inoperative for reversing the feed of the garment. and a common means for actuating said switch and bringing said reverse feeding means to operative position.

17. In a threading macl'iine. the combina tion of a tape support. means for feeding the garment onto the support. means for withdrawing the garment from said support. a gear transmission hot-Ween Withdrawing means, said Withdrawing means being normally inoperative. and means for moving said Withdrawing means to operative position Without altering the relation of the gear transmission to said feeding and Withdrawing means.

18. In a threading machine, the combination of a tape support, means for feeding the garment onto the support. a motor for driving said feeding means, a pressure device, and common means for reversing the direction of the motor and for moving the pressure device to inoperative position.

19. In a threading machine. the combination of a tape support. a pair of feeding rollers for advancing the garment onto the support, one of said feeding rollers being yieldinglv supported in the machine. a pressure device adapted to act upon the garment during the feeding movement. and common means for moving said yieldingly supported feeding roller and a part of the pressure device to inoperative position.

20. la a threading machine, the combination of a tape support, a pair of feeding rollers for advancing the garment onto the support. a rock shaft from which one of said feeding rollers is supported, a pair of reversing rollers, one of said reversing rollers heing movable about said rock shaft, and means carried hy said rock shaft for moving the other reverse feeding roller to operatiie position When the feeding roller movable about the rock shaft is moved to operative position.

21. In a threading machine, the combination of a tape support, a pair of feeding rollers. a rot-l: shaft from which one of said feeding rollers is supported, a pressure device. and, means carried hv the rock shaft for moving said pressure device to ino erative and operative position, respective y.

22. In a threading machine. the combination of a tape Support. a pair of feeding rollers, a rock shaft, a motor for driving one of said feeding rollers. the other feeding roller being supported from said rock shaft. and means carried by said rock shaft for reversing the direction of said motor.

23. In a threading machine, the combination of a tape support, a rock shaft. a pair of feeding rollers. one of which is supported from the rock shaft. a shaft having its axis parallel to the axis of the other feeding roller. a reverse feeding roller carried by said shaft. another reverse feeding roller FillpPOl'i'Ql'l from said rock shaft. and means carried by said rock shaft for longitudinally displacing the shaft of the reverse feeding roller.

24. In a threading machine. the combination of a tape support. a pair of feeding rollers. a rock shaft. means for supporting one of said feeding rollers from the rock shaft. a reverse feeding roller. a shaft on which said reverse feeding roller is mounted, a raclr associated with said last named shaft, and means associated with the rock shaft for longitudinallv displacing the rack.

25. In a threading machine. the combina tion of a tape support. means for feeding the garment onto the support, a shaft. a roller carried hv said shaft. a cylindrical rack mounted on said shaft. driving means for the shaft and gears operativelv associated with the cylindrical rack for longitudinally displacing said rack and shaft without interrupting the rotation of said shaft.

26. In a threading machine. the combination of a. tape support, feeding means for advancing the garment onto the support. a pressure device including a pair of pressure shoes adapted to act upon the garment, a rock shaft. a roller supported from said rock shaft in normally inoperative position. a vertical spindle associated with one of said pressure shoes, a horizontal spindle as- In testimony whereof, I afiix my signasociated with the vertical spindle, and means lure in the presence of two witnesses at 36 connected with said normally inoperative West Randolph St, (lhica o, Illinois.

feeding roller for simultaneously swinging HANS LUNDQUIST. 5 said spindles about their axes when the in- Witnesses:

operative roller is moved to operative posi- ANDREW G. SCHNEIDER,

tion, and vice versa. L. Orm READ. 

